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r1 D FID g glatten gisting geirrt @ffmc JOHN J. ALVORD, OF TECUMSEH,MIOHIGA, -ASSlGfNOR` TO HIMSELF ANI) SAMUEL C. BLINN, OF THE SAME PLACE.

Laws 1mm No. 64,270, ma April so, 1867.'

dige' rlgehnle referto tu it .there Zijrttrrs ntrnt mit making putt nftige smut.

'ro ALL WHoM rr MAY concnnn;

Be it known that I, JOHN J. ALVORD, of Tecumseh, in the county ofLenawee, and State of Michigan, have invented a new and usefulImprovement in Hoop Machine; Vand I do hereby declare that the followingis a. full,

clear, and exact description thereof, which will enable those skilled inthe art to make and use the same, reference being had to theaccompanying dran-ings, forming part of this specification, in WhichvFigure 1 is a top View of my improved machine partly in section, throughthe line z fig. 3.

Figure 2 is a. vertical cross-section of the same, taken through theline y y, iig.v 3.

Figure 3 is a side View of the same partly in section, through the linex in, iig. l.

Figure 4 is a detail cud view of the same.

Similar letters of reference indicate corresponding parts.. l

)Iy invention has for its object to furnish an improved machine, bymeans of which the hoop may be cut a one stroke ofthe knife, and thetable tipped automatically to give the proper bevel to the hoop; and itconsists in hangingthe knife from the frame of the machine, andoperating it by a Pitman connected. with the crank- Wheel of thedriving-shaft, so as to cut the hoop at `a sin-glie drawing stroke.; inthe combination of the cams attached to the driving-shaft, with thepivoted frame upon which the table slidesback and forth; and in thecombination of the piv'oted arms, parvis, ratchetwhe'el, feed-shaft,landtable with eachother, for the purpose of feeding the timber forwardto the knife, the whole being constructed and arranged as hereinafter'more fully described.

A is the knife, which is suspended from the frame B of the machine, bythe arms C, in such a way that the stroke may vend when the said arms Ohave moved down into avertcalfposition. To the end of the knifeispivoted the end of the pitman D, the other end of which is pivoted tothecrank-wheel E, attached to the end of the shaft F. The shaft F revolvesin bearings in the frame B, and has a bevel gear-wheel, G, attached toyit, into which mesh the teeth of the bevel gear-Wheel II, Iattached to.the end ot" the shaftl. The sha-ft Irevolves in bearings in the frame Bof the machine, and has cams, J, attached to. it, which, by coming incontact with the frame L, upon which the table K rests and slides, raiseand lowerl the said frame: and table. To enable this to be done in sucha way as to give the desired bevel to the hoops, the.- frame L ptvotedat its forwardedge to the frame B. M is a shaft, which revolvesin'bearings attached' to thel'ou'er side ofthe frame L. To the shaft Mare attached gear-wheels N, the teeth of which mesh into the tcethtofthe racks lc', attached to the table K, so that by the revolutidn ofsaid shaft the said table may be fed forward to tlirevv knife A. O and Pare arms, the inner ends of which have holes formed through them,through which the shaft` M passes. The outer end of the arm vO ispivoted to thc frame B of the machine, and the outer end'Y ofthe arurPis connected to the frame B v by a short connection-bar, y. To the armsO and P are pivoted the paxvls R and. S, which are so formed as to takehold of the teeth of the ratchet-wheel T, attached to the shaft M, andrevolvey it, asthe table and yframe are raised and lowered, so as tofcedthe said table forward each time the thickness ofa hoop. U is alever or bar, to which the pawls It and S are pivoted, so that the saidpawls may be operated by hand when desired.

In using the machine, the timber is saw-n into apropcr length andthickncssto form the hoops. It is then steamed and placed upon the tableK, and the machine started. As the frame and table are raised by thecams J, thc table is fed forward by the ratchetnrheel T, and the knifeA, at a single drawing stroke, cuts a hoop having thc requisite bevel.As the cams lower the said frame and table,'the table is again fedforward, and the knife cuts another hoop. K I

I claim as new, and desire to secure by Letters Patent-- The arrangementof the arms O I, pirated together upon the shaft M, and having th-pawlsR S secured thereto, ratchetnvhocl T, vibrating frame L, bearing thesaid shaft M, the sliding table K, to which is secured tbc rar-k K',meshing inhrthe gear-wheels N, and cams J, upon the shaft I,substantially as herein set forth for the purpose specified.

JOHN J. ALVORD Witnesses E. B. W ooD'-, C. Bunnmor..

